GeForce GTX 660 Ti and GeForce GTX 680MX - video card comparison
Passmark - benchmark score GeForce GTX 660 Ti vs GeForce GTX 680MX
GeForce GTX 660 Ti
4547
GeForce GTX 680MX
4266
GeForce GTX 660 Ti
GeForce GTX 680MX
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK104
-
Market segment
Desktop
Laptop
Release date
August 2012
October 2012
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
-
Supplementary power connectors
Two 6-pin
-
SLI options
+
+
Boost clock speed
980 MHz
-
Core clock speed
915 MHz
720 MHz
CUDA cores
1344
1536
Floating-point performance
2,459.5 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
3540 Million
Pipelines / CUDA cores
1344
1536
Power consumption (TDP)
150 Watt
122 Watt
Texture fill rate
102.5 billion/sec
92.2 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
192-bit GDDR5
256 Bit
Memory clock speed
6.0 GB/s
2500 MHz
Memory bandwidth
144.2 GB/s
160 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
-
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 API
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.3
4.5
Shader Model
5.1
-
Vulkan
1.1.126
-
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
+
Optimus
-
+